Faster Air Cleaner: Kilo air purifier filters air 4 x per hour in 269 sq feet, it only takes An Hour to purify a 1076 sq feet room. 3-Stage Filter, Relieves Allergies: Imported 3 stage filters can filter particles as small as 0.03 microns and air pollution of PM 2.5 and remove 99.99% of pet dander, dust, pollen, smoke, odor, mold, etc. Effectively improving indoor air quality and then pet allergic, coughing, sneezing, chronic allergies and seasonal allergy are greatly relieved. 7 Color Atmosphere Lighting: The air purifier offers 7 color atmosphere lighting for you to customize the light color for different occasions such as living room, study room, kitchen, bedroom and etc. Moreover, when you turn to the sleep mode, the light will automatically dim without causing any disturbance. 2,4,8H Timer: Only 22 dB on sleep mode, put this air filter in bedroom and customize the running time of the air purifier, then wake up with fresh air.